euesa1-3, Exercise 3: ESA and the European Union Model answer (any three differences): 1. Type: ESA is an intergovernmental space organisation; the EU is a political and economic union. 2. Members: ESA has about two dozen members, including non-EU countries; the EU has only EU countries. 3. Founded: ESA dates from the mid-1970s; the EU took much of its present form from the 1990s, with earlier roots. 4. Space role: ESA builds and operates space missions; the EU owns and funds some programmes (navigation, Earth observation) and sets space policy. ESA members outside the EU: the United Kingdom, Norway or Switzerland. Check the current member list in ESA's own pages.